package com.ricorich.producer;

import com.rabbitmq.client.BuiltinExchangeType;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;

import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.util.concurrent.TimeoutException;

// 发送消息的生产者
public class Producer_PubSub {
    public static void main(String[] args) throws IOException, TimeoutException {

        // 1.创建工厂
        ConnectionFactory connectionFactory = new ConnectionFactory();

        // 2.设置参数
        connectionFactory.setHost("120.77.203.191");
        connectionFactory.setPort(5672);
        connectionFactory.setVirtualHost("/ricohost");
        connectionFactory.setUsername("rico");
        connectionFactory.setPassword("199418");

        // 3.创建连接connection
        Connection connection = connectionFactory.newConnection();

        // 4.创建channel
        Channel channel = connection.createChannel();

        // 5.创建交换机
        /*
        exchangeDeclare(String exchange, BuiltinExchangeType type, boolean durable, boolean autoDelete, boolean internal, Map<String, Object> arguments)
        参数：
        1. exchange：交换机名称
        2. type：交换机类型
            DIRECT("direct"),   定向
            FANOUT("fanout"),   扇形(广播)
            TOPIC("topic"),     通配符
            HEADERS("headers"); 参数匹配
        3. durable: 是否持久化
        4. autoDelete：是否自动删除(没有consumer的时候)
        5. internal：内部使用。一般是false
        6. arguments：参数
         */
        String exchangeName = "test_fanout";
        channel.exchangeDeclare(exchangeName, BuiltinExchangeType.FANOUT, true, false, false, null);

        // 6.创建队列
        String queue1Name = "test_fanout_queue1";
        String queue2Name = "test_fanout_queue2";
        channel.queueDeclare(queue1Name, true, false, false, null);
        channel.queueDeclare(queue2Name, true, false, false, null);

        // 7.绑定队列和交换机
        /*
        queueBind(String queue, String exchange, String routingKey, Map<String, Object> arguments)
        参数:
        1. queue:队列名称
        2. exchange：交换机名称
        3. routingKey：路由键，绑定规则。如果交换类型是fanout，则设置为“”
        4. arguments：参数
         */
        channel.queueBind(queue1Name, exchangeName, "", null);
        channel.queueBind(queue2Name, exchangeName, "", null);

        // 8.发送消息
        String body = "日志信息：张三调用了findAll方法...日志级别:info";
        channel.basicPublish(exchangeName, "", null, body.getBytes());

        // 9.释放资源
        channel.close();;
        connection.close();
    }
}
